straighten out . solve；make less confused解决；使清楚
I hope the misunderstanding will soon be straightened out．我希望误会很快就会澄清。
He said we needed some straightening out on one or two points．他说我们需要澄清一两点问题。
I could not grasp the theory until Dr．Rose straightened me out on it ．罗斯博士解释后，我才弄懂了那种理论。
straighten out . put right恢复正常；使好转
I'll try to straighten the matter out once and for all．我要竭力把这事情办好。
I'm only a little tired；a night's sleep will straighten me out．我只是有点累了，睡一晚就会好的。
straighten up . become erect or upright；make straight挺直身子
I told him to straighten up．我叫他要挺直身子。
He straightened himself up and looked them squarely in the eye．他直挺挺地站着，瞪着眼睛盯着他们。
straighten up . make tidy整理
Mrs．White straightened up the house before the guests came．怀特太太打扫好房子准备接待客人。
He straightened up the papers．他把文件弄整齐。
straighten up . clarify阐明；澄清
I'd like you to straighten a few things up for me．我想请你给我澄清几件事情。
strain after . strive laboriously for竭力追求；拼命争取
The workers are straining after quality as well as quantity．工人们力求保质保量。
There is no straining after effects in this writer's work．在这个作家的作品里，没有追求表面效果的痕迹。
strange to say . not what somebody might think 说也奇怪
Strange to say，Jerry doesn't like candy．奇怪，杰瑞不喜欢糖果。
stray from . move from；leave 走离；偏离
Don't stray from the point．不要离题乱扯。
Seeing that the speaker was straying away from the subject，the chairman reminded him to keep to the point．看到发言者在离题乱扯，会议主席提醒他要扣住主题来讲。
stretch out . extend 伸出
The little boy stretched out his hands to catch the toy．小男孩伸出双手去抓玩具。
He stretched out his arms and embraced me tightly．他伸出双臂紧紧拥抱了我。
stretch out . extend one's body or part of it for relaxation 伸直四肢
He stretched out on the grass in the sunshine．他舒展着身子躺在阳光下的草地上。
The cat stretched out in front of the fire．猫伸直身体躺在炉前。
stretch out . be enough or cause something to be enough 使够用
Will the food stretch out? Tonight we've got three extra guests for dinner．饭菜够吃吗?今晚我们多了三个客人吃饭。
I don't see how I can stretch out the housekeeping to the end of the month．我不知道家用钱要怎么安排才能维持到月底。
strike at . attack 进攻
Many newspapers struck at his latest plan．许多报纸都攻击他的最新计划。
He struck at me but missed．他动手打我，但是没打着。
strike at . attempt to destroy 企图毁坏
Each of the two theories seems to strike at the foundation of the other．这两种理论似乎从根本上相互排斥。
strike back . return an attack 还击
In reply to last night's bombing attack，our planes this morning struck back at the enemy port．为了回敬昨夜的空袭，我机今晨对敌机场进行了还击。
When he attacked me，naturally I struck back．他既然攻击我，我当然还击。
strike down . cause to fall by a blow 击倒
The man struck down by lightning during the storm was taken to the hospital．在暴风雨中被雷电击中的人被送进了医院。
With one blow he struck down his opponent．他一拳就把对手击倒。
strike down . make somebody unable to lead a full，active life 使受到摧残
He was struck down by a heart attack at the age of forty．他四十岁时得了心脏病。
He is struck down with flu．他患流感。
strike dumb . make unable to speak 使哑口无言
His eloquence struck them dumb．他的雄辩使他们哑口无言。
The news of his financial losses struck him dumb．他财务损失的消息使他目瞪口呆。
strike in . interrupt suddenly 突然插话
Someone struck in with a question．有人插进来提出了一个问题。
“I know where she was．”Jane struck in．简突然插话说：“我知道她在哪儿。”
strike off . remove 删去；除去
He promised to strike off the interest of the first debt．他答应免去第1笔债的利息。
strike off . remove by cutting 斩去；砍去
The boy was striking off all the flowers with a stick．小男孩在用棍子把花全部打落。
He struck off the enemy's revolver．他一拳打掉了敌人的左轮手枪。
strike off . print 印刷
They struck off five thousand copies of the election leaflet．他们印了五千张关于选举的传单。
Another hundred thousand copies of the novel have been struck off since last year．自去年以来，那部小说又印了十万册。